Projection arrangement for advertising purposes



E. MOERCH June so, 1931.

Filed May '20. 1929 s Sheets-Sheet 1 5 4 a 4 m 4 V 6 s u 4 I w 8 I n V 1 J fl a 7 a M u 2/ 5 1 u n 1 1 W Fill-L 2 1 v 5M 3 5 3 4 d w a 2 J 5;. m 5 2 w ll a v M 4 J [I4 4 4 13d 4 4 v 1 Erik Moe s 5 4.3 y 2 I Jigs E. MOERCH June 30, 1931.

PROJECTION ARRANGEMENT FOR ADVERTISING PURPOSES Filed May 20, 1929 3 Sheets-Sheet 2 IA/VA'A/Td)? 3 3 Moerch June 30, 1931. E. MOERCH 1 Y 3 1995 PROJECTION ARRANGEMENT FOR ADVERTISING PURPOSES. I

Filed May 20. 1929 I 3 Sheets-Sheet 3 Erik Moez'ch Patented June 30, 1931 NT OFFICE ERIK MOERCH, OF PARIS, FRANCE PROJECTION FOB ADVERTISING PURPOSES application filed Iay 20, 1989. Serial No. 364,531.

Thepresent invention relates to a screen projection arrangement for advertising purposes, -which is chiefly characterized by the fact that the characters tobe:pro ec.ted .are

i 5 formed upon a flat disk of transparent ma+ teriali such as glass, thesaid disk. bemg. rotated-in such manner that the said characters will-travel betweenthe "illuminant and the projecting lens. I r

m In the accompanying drawings and by way-of example.

Fig. 1 is a view of theensemble of the -.ar-

rangementr j Fig; 2Iis a vertical section of the apparatus according to the invention:

- Fig; 3 is a correspondingcross section.

Fig. Lisa-plan view. i

" Fig. :5 is adetail of'the COIiStIUCtlOD:

' The. letters-or other characters, or designs, employed for advertising. purposes: are formednpon the face of aflat disk 1 of trans parent material, according to a .circlez-or a spiraLa The said disk: 1 has a-central hole 2 and another hole "3 formed in the. surface of the disk which does not icarryi the: said characters to beprojected: The hole's canbe'enga'ged upon the projection 4 on the axis of a rotatable disk 5 adapted to turn the said disk 1, and upon a stud 6 projecting from the upper face of the disk 5. The shaft 7 of said disk 5 is supported by lugs 89 pertaining to the main frame 10. Said fr ame comprises a bearing 11 in which is a mounted a shaft 12 carrying at one end a worm 13 and at the other end a worm wheel 14; said worm engages aworm wheel 15 mounted on the shaft 7 of the said disk 5.

The worm wheel 14 cooperates with a worm of-the frfame"10 whenvthe pointedend 33 is frame 10-is provided with a lug 29 to which 60 is attached the end of a spring 30' whose other end is secured to-a casing 31 which contains thewhole mechanisms The frame 10 maybe given various positions, as; well as the shaft 7 of the disk 5,-b'y the followingmeans.

The said disk 5 has formed on its under surface a spiral groove 32 cooperating with the pointed end 33 of a pivoted lever 34 Whose horizontalaxle 35 is mounted in a forked bracket .36secured to thefcasing .31. Whenthe lever 34 is moved, the said pointed end is released, and the contrary movement willaen age the said end in the groove 32 of the disk .5. The said lever34 carries an adjustable stopr35 limiting the extent of its angular motionwhn the end 33 is engaged in the said groove 32.0f the disk5. In like manner, the casingH3I is-provided with an elastic stop. 36 limiting the angular motion released and the springa30 moves the .whole device. The combination of the lever". 34, the spiralgroove 32and the spring. 36 per- Inits the radial motion of the disk 5 when it rotates, in order toefiect the successive projection of thecharacters offthe transparent di'skl; Inclined .planes 34 and fingers 34;? carried by the disk 5 operate, whenithis diskis in rotation, upon the lever 34 in order to bring again the system in the-position of (m the rojecti'on initial, when the: last line of the esigns is being projected.

On the casing'31 is mounted ari ght angular partition. The vertical portion 37 of said partition separates the chamber containingthe described mechanism from the chamber' containing the illuminant. Tihehorizontal, portion 38, is parallel to. the transparent disk 1,-and has an aperture 39 in which s mounted-a lens 40 preceded by a diaphragm 41 limiting the width of the beam from the illuminant 412 before which it is disposed and which is mounted on removable casing i3 adapted to close the corresponding chamber 31; said casing or cover 43 comprises a fixed part which extends above the horizontal part 38 of the partition, and to which the other part 43 of the cover is hinged. This latter part is movable to give access to the mechanism and to allow the rotatin disks 1 to be changed. On the fixed part or the said cover and in front of the lens iO is disposed the metal tube 44, which can be suitably moved, of a screen projection lens. The electric lamp 4-2 forming the illuminant has upon its wall a silvered part 45 forming a reflector. The lamp and the electric motor rotating the transparent disk 1 are connected to the terminals of the same electric circuit, a rheostat 46 being mounted in the motor circuit.

To receive the beam of light which is vertically projected, the said apparatus is combined with a screen consisting of a prismatic box 47 having one side open and comprising a horizontal face 48 of ground glass, perpendicular to the projection beam issuing from the tube 44. Above the ground glass is mounted a. mirror 49 in the 45 position upon which is formed the moving image of the characters on the disk 1. The device is completed by two end parts 50 of black metal plate.

I claim:

1. In a luminous projection apparatus for advertising purposes, a flat transparent disk having advertising characters thereon in a spiral formation, a horizontal rotatable car- 'rier disk having the transparent disk removably mounted thereon, means for rotating said disk and controlling the speed of rotation, the carrier disk having a spiral groove formed in its under side, a radial arm mounted at one side of said disk with its free end arranged to engage said groove, a pivotally mounted frame carrying the driving mechanism and said carrier disk, a traction spring connected to the frame and urging the side of the groove against said arm, and means for projecting enlarged images of the characters on said transparent disk.

2. In a luminous projection apparatus for advertising purposes, a flat transparent disk carrying advertising characters, a horizontal rotatable carrier disk adapted to receive and carry said transparent disk, a casing containing the disks and the means by which the same can be rotated and also moved crosswise, a right angular partition in the said casing, an illuminant at the rear of said partition, an aperture in said partition in front of the luminous beam projected by the illuminant, a lens disposed in said aperture, a diaphragm cooperating with said lens, a cover adapted to cover the said casing and disk, and a lens tube mounted on said cover and cooperating with the lens, the cover having a constricted portion into which the transparent disk marginally projects between the lens and the diaphragm.

In a luminous projection apparatus for advertising purposes, a fiat transparent disk carrying advertising characters in spiral formation, a rotatable carrier disk adapted to receive the transparent disk, and provided with a spiral groove in its under side, a radial arm which is angularly movable and engages the said groove, a pivoted frame carrying the driving mechanism and the disks, a spring urging said frame and thus pressing the side of the groove against the radial arm, a casing containing the Whole mechanism, a partition in said casing having an aperture through one end portion, an illuminant at the rear of said partition in position to pro jecta beam of light through said aperture, 8. lens disposed in said aperture, a diaphra m cooperating with said lens, and an adjusta le lens tube alined with the lens and the opening in the diaphragm, the disk projecting marginally between the lens and the diaphragm to dispose the advertising characters in the beam of light.

t. A luminous projecting apparatus com prising a transparent disk having characters thereon in spiral formation, projecting and illuminating elements arranged to project a beam of light through the characters on the disk, a pivoted frame, a rotatable carrier disk receiving and carrying the transparent disk and having a spiral groove in its under side, means on the frame for supporting and rotating said carrier disk, an arm mounted adjacent the carrier disk and extending over the same with its free end engaging the groove therein, and means on the carrier disk to en gage the arm for positioning the disk.

ERIK MOERCH. 

